Metis Design Corporation (MDC) has developed Structural Health Monitoring (SHM) technology that utilizes a network of digital sensors to monitor physical changes in critical structural components within the application environment. The patented technique utilizes passive and active ultrasonic monitoring techniques to detect fatigue crack initiation and growth, corrosion, and/or impact events. Condition Based Maintenance (CBM) initiatives have been evolving for over twenty years, and have resulted in significant cost avoidance, safety improvements, and increased fleet readiness. State-of-the-art CBM-enabling technology has been focused on dynamic and high-cost systems. With current aircraft structural maintenance and inspection procedures being severely labor & material intensive across industry and defense platforms, and with new metallic and composite components being introduced, advancements in SHM technology has become an increasing priority for many military and commercial air-framers.
Metis Design Corporation (MDC) is a recognized worldwide leader in the field of structural health monitoring. MDC has developed a unique approach for monitoring of fastened joints by developing an ultrasonic transducer that is integrated into rivets after they have been installed on a structure. The method effectively turns a row of fasteners into its own phased array, with the ability to scan for fatigue cracks or corrosion in any layer of the fastened stack-up. The main advantage of this approach is that it does not impact typical rivet installation, which would add risk and further certification requirements. This technology is initially targeted towards the CH-53K rotorcraft, but MDC seeks interest from other platforms with riveted joints who would benefit from condition-based maintenance enabling technologies.